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TRUSTED BY GREENWICH, CT HOMEOWNERS

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    Average homeowner rating
  • Verified reviews icon26
    Verified generator installs reviews

Find Generator install pros in Greenwich

Avatar for Frank's Generator Sales Service & Repair
Frank's Generator Sales Service & Repair
5.0(
22
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+4 more

Serving Greenwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"10 yr old Generac GP6500E wouldn’t start. Called around and many want to upsell to permanent. Found Franks and what a delight. Honest, down to earth, affordable for senior. Showed up on time. Changed oil, spark plug. Pulled carburetor and found it dirty and fouled. Got used one from his shop(same day) and installed. Gen started right up on one or two pulls. Battery was dead but showed us how to replace. Highly recommend Frank’s Generator."
Generator emergency service call
Generator Project
Generator Service
Generator emergency service call
Generator Project

+29

Response time2 days
Response rate98%
19 neighbors recently requested a quote
Conn West Electric, LLC
4.9(
18
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Greenwich, CT and surrounding areas

Approved

In business since 1994

Free estimates

Customers say: Quick response

"Tony came to the house to diagnose the problem. Then he went out to find the right type of switch that we needed, and came back to install it. He was the only electrician to diagnose it correctly."
Response time9 hrs
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Blue Wave Electric, LLC
Blue Wave Electric, LLC
5.0(
13
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Greenwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Credit card accepted

"This company is top notch! They came out quickly installed a number of fixtures that were difficult, and repairs two outlets which were complex. They worked fast, explained everything in detail, were kind, polite and efficient. I will never go to another election! These guys are real pros!"
Response time9 hrs
Response rate95%
7 neighbors recently requested a quote
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Generator Install questions, answered by experts

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

The Greenwich, CT homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.